Capturing Race Exercise 3 / Solution

[Diagram]

Ko for life

This gives us a ko...

[Diagram]

Better

...but this gives us a snapback, and Black is defenseless (unless there's another option for B2 that I don't see). And since the problem page is referenced by Snapback Workshop, my hunch is that this is correct.

-- Scartol

[Diagram]

Better

Actually my intended snapback is the kind in this diagram, but your solution is correct nonetheless.

--unkx80

[Diagram]

Another way A

How about this?



After W3 Black may respond at a or b. If Black responds at a, White captures at W3. If Black responds at b, White captures at a.

[Diagram]

Another way B

If Black responds to W 1 at B2 (or a), White captures at W3. At that point the BS stones are dead. Black can't prevent White capturing them.

--Bisqwit

[Diagram]

Still a ko

Nice try, but B2 can still create a ko this way.

--unkx80

As a ko this is better for White as she captures first (try to get first capture in a ko), but the snapback is naturally the correct answer. --Dansc


This is a copy of the living page "Capturing Race Exercise 3 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.
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